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Finding the Fourth Proportional to 43,907.70, 65,861.55 and 35,159.70

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Solution

The fourth proportional to 43,907.70, 65,861.55 and 35,159.70 is: 52,739.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,907.70 : 65,861.55 = 35,159.70 : x
  2. Step 2: Convert to fraction form
    43,907.70/65,861.55 = 35,159.70/x
  3. Step 3: Cross multiply
    43,907.70x = 65,861.55 × 35,159.70
  4. Step 4: Simplify right side
    43,907.70x = 2,315,672,339.54
  5. Step 5: Solve for x
    x = 2,315,672,339.54/43,907.70
  6. Step 6: Final answer
    x = 52,739.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.